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Ardun on the dyno #2755229
03/23/20 09:39 PM
03/23/20 09:39 PM
Joined: Jul 2006
Posts: 4,177
California
mickm Offline OP
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mickm  Offline OP
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A flathead Ford with Ardun heads and 4 Strombourgs on the dyno. Hopefully I'll get to see it do some pulls tomorrow. I forget, but I think he said that are going for 400+ HP.

IMG_6475.jpegIMG_6474.jpegIMG_6476.jpegIMG_6473.jpeg
Re: Ardun on the dyno [Re: mickm] #2755234
03/23/20 09:44 PM
03/23/20 09:44 PM
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar Offline
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Super cool !
Granted , the box was very small back then.
But Mr. Duntov wasn't just thinking outside of it.
He blew it up.

Re: Ardun on the dyno [Re: tubtar] #2755243
03/23/20 10:00 PM
03/23/20 10:00 PM
Joined: Jan 2003
Posts: 20,642
So Near, Yet So Far
topside Offline
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So Near, Yet So Far
...and what looks like an old Hunt magneto.
That's all very cool !

Re: Ardun on the dyno [Re: mickm] #2755245
03/23/20 10:10 PM
03/23/20 10:10 PM
Joined: Aug 2008
Posts: 85
Alberta,Canada
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605ply Offline
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..so cool up

Re: Ardun on the dyno [Re: 605ply] #2755248
03/23/20 10:14 PM
03/23/20 10:14 PM
Joined: Nov 2006
Posts: 4,670
Star Idaho
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67vertman Offline
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Very nice and unique!

What is it going in? drive


My Monster are real!

Living within your means makes life pretty easy.
Re: Ardun on the dyno [Re: mickm] #2755257
03/23/20 10:48 PM
03/23/20 10:48 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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I'll be really surprised if it gets close to 400 HP,I was cutting my teeth on hot cars and hot rodding in the early 1960s, lots of Ardun powered street rods got their clocks clean regularly by dual quad 1957 Chevy 283 motors that had been hop up a little in 1957 Chevy bodies shruggy
Those little carbs don't help either.
Do you know which block was used and how many C.I. it has now? Those blocks only had three mains caps, spin them up to far and the pin would fall out of the grenade and go BOOM
Sorry to be a party pooper.
I really hope they break or make over 350HP up
Please keep all of us in the loop luck


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Ardun on the dyno [Re: Cab_Burge] #2755269
03/23/20 11:33 PM
03/23/20 11:33 PM
Joined: Jul 2006
Posts: 4,177
California
mickm Offline OP
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It's a 48-52 block, something like that. Dino was saying that the guy doesn't have all the stuff he really needs to make good horsepower, like a good set of headers, etc...

I may be wrong about the HP, I'll find out tomorrow. I'll get a video of a pull and try to remember more of the info on it.

Till then...

Re: Ardun on the dyno [Re: 605ply] #2755303
03/24/20 05:53 AM
03/24/20 05:53 AM
Joined: Jan 2003
Posts: 6,389
nielsville, minn.
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quickd100 Offline
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nielsville, minn.
I can here that flathead starter in my head.

Re: Ardun on the dyno [Re: Cab_Burge] #2755304
03/24/20 06:11 AM
03/24/20 06:11 AM
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Milwaukee WI
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TRENDZ Offline
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I don’t mean to take anything away from a very cool build, but I would think 400 is extremely optimistic.
Ive never had a chance to look at those heads in person, but I agree with Cab. If the airflow is there, with the small bore/ displacement, you still need RPM to make HP. And as said, three main caps on these blocks. Thats a lot of unsupported crank span!
Very neat engine. Hope his goals are achieved.


Last edited by TRENDZ; 03/24/20 06:15 AM.

"use it 'till it breaks, replace as needed"
Re: Ardun on the dyno [Re: TRENDZ] #2755306
03/24/20 06:49 AM
03/24/20 06:49 AM
Joined: Sep 2005
Posts: 620
Deep DEEP SOUTH
LAD 524 Offline
mopar
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Deep DEEP SOUTH
Not an Ardun (yet) but the 290 ci blown FH I built ok up

There's quite a few 325-250HP mild boost, blown FHs getting around that are not Ardun headed.

I built mine with a 4 1/8" crank, H beams, Ross forged slugs and all three studded caps are billet steel. A short fill to the block, I ported it, added 1.6 in/ex valves, a custom blower cam and adjustables. Dual Stromberg WW 2 BBLs, it runs 8lbs of boost on pump 98 down here. Other than a popped head gasket, its been dead nuts reliable and after a recent teardown / inspection the bearings looked brand new smile

[Linked Image]

Last edited by LAD 524; 03/24/20 07:01 AM.
Re: Ardun on the dyno [Re: quickd100] #2755329
03/24/20 08:20 AM
03/24/20 08:20 AM
Joined: Dec 2013
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Wichita
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GY3 Offline
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The ARDUN heads were originally designed for garbage trucks because the OE flatheads didn't have enough power.

I've never understood the infatuation with the pre-war relic platform. Seems like a lot of trouble for little horsepower.

Then again, people still race horses...


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Ardun on the dyno [Re: GY3] #2755331
03/24/20 08:31 AM
03/24/20 08:31 AM
Joined: Nov 2004
Posts: 232
NYC
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Dartari Offline
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NYC
I still
Originally Posted by GY3
The ARDUN heads were originally designed for garbage trucks because the OE flatheads didn't have enough power.

I've never understood the infatuation with the pre-war relic platform. Seems like a lot of trouble for little horsepower.

Then again, people still race horses...
Its called cool factor to be different Is still what gives juice to our hobby

Re: Ardun on the dyno [Re: Dartari] #2755351
03/24/20 09:18 AM
03/24/20 09:18 AM
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar Offline
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There are a couple serious flat head guys up in my neck of the woods and I was gabbing with one just a couple weeks ago.
One of them has a front motor dragster that runs stock blocks and has allegedly run in the 7's.
They use a girdle on the bottom end that essentially is a bottom end in a box........includes the caps and ties into the oil pan rails as well.
I got to work on a couple of them in high school auto shop and the rods were what scared me.
But there is still fairly significant aftermarket support for them , and some die hard fanatics who run them.

Re: Ardun on the dyno [Re: Dartari] #2755354
03/24/20 09:35 AM
03/24/20 09:35 AM
Joined: Dec 2013
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Wichita
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GY3 Offline
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Originally Posted by Dartari
I still
Originally Posted by GY3
The ARDUN heads were originally designed for garbage trucks because the OE flatheads didn't have enough power.

I've never understood the infatuation with the pre-war relic platform. Seems like a lot of trouble for little horsepower.

Then again, people still race horses...
Its called cool factor to be different Is still what gives juice to our hobby


I get that and still appreciate the visual art of them. Same with ricers. I can appreciate good work no matter what the platform. Just not for me. I guess it's what you grew up around.


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Ardun on the dyno [Re: topside] #2755356
03/24/20 09:36 AM
03/24/20 09:36 AM
Joined: Oct 2007
Posts: 4,205
New York
polyspheric Offline
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Scintilla Vertex?


Boffin Emeritus
Re: Ardun on the dyno [Re: polyspheric] #2755370
03/24/20 10:21 AM
03/24/20 10:21 AM
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Posts: 2,540
Milwaukee WI
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TRENDZ Offline
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Looks like it sort of. Heres a gennie...

0044B646-ABAA-4D9C-A474-4B6B68B5B4B2.jpegDFF9E985-CD37-4A71-8302-21CC8351986B.jpeg

"use it 'till it breaks, replace as needed"
Re: Ardun on the dyno [Re: TRENDZ] #2755379
03/24/20 11:04 AM
03/24/20 11:04 AM
Joined: Aug 2006
Posts: 2,141
junction city oregon
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viperblue72 Offline
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junction city oregon
I don’t think you’d want one of these to make 400hp. Very cool though. If it makes 300 or just over, the owner should be happy and it can live a longer happier life. 👍

Re: Ardun on the dyno [Re: viperblue72] #2755409
03/24/20 11:57 AM
03/24/20 11:57 AM
Joined: Sep 2003
Posts: 19,237
north of coder
moparx Offline
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north of coder
you can always tell a flathead is under the hood by the starter sound.
and it's a CRIME to run one of them with MUFFLERS ! devil
beer

Re: Ardun on the dyno [Re: moparx] #2755431
03/24/20 12:31 PM
03/24/20 12:31 PM
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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TRENDZ Offline
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Milwaukee WI
My only experience with a flat head ford was with my neighbor. He’s building an “A” hotrod. Wanted me to relive the block. I had no idea what he was talking about, until he showed me😀. Turned out nice.

F0C50FB8-2D2C-421E-ACAB-348DD849CFCB.jpeg3326D843-DDCB-4B14-BC1C-0FC9E33CCC3D.jpeg

"use it 'till it breaks, replace as needed"
Re: Ardun on the dyno [Re: mickm] #2755440
03/24/20 01:03 PM
03/24/20 01:03 PM
Joined: Oct 2007
Posts: 4,205
New York
polyspheric Offline
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IDT 400 hp is going to happen.
That exhaust tells me that the cam is mild.


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